[069/119] drm/i915: Select CONFIG_SHMEM

Greg KH
2009-12-07T00:23:43Z

[-- Attachment #1: drm-i915-select-config_shmem.patch --]
[-- Type: text/plain, Size: 1099 bytes --]

2.6.31-stable review patch. If anyone has any objections, please let us know.

------------------
From: Chris Wilson <chris@chris-wilson.co.uk>

commit ca9ab10033d190c1ede85fdf456307bdfdabf079 upstream.

The driver requires shmfs as the backing filesystem to handle the buffer
objects, so ensure it is selected if the user chooses to build our
driver.

Fixes: Bug 14662 - Dell E5500 kernel panic with KMS
http://bugzilla.kernel.org/show_bug.cgi?id=14662

The revealing nature of the panic is the NULL function pointer
dereference in read_cache_page_async().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-and-tested-by: Mateusz Kaduk <mateusz.kaduk@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/gpu/drm/Kconfig | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -82,6 +82,7 @@ config DRM_I830
config DRM_I915
tristate "i915 driver"
depends on AGP_INTEL
+ select SHMEM
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT